How to Get It Wrong, di Paul Krugman, NYT, 14 settembre 2014

It seems to me, however, that it’s important to realize that the enormous intellectual failure of recent years took place at several levels. Clearly, economics as a discipline went badly astray in the years — actually decades — leading up to the crisis. But the failings of economics were greatly aggravated by the sins of economists, who far too often let partisanship or personal self-aggrandizement trump their professionalism. Last but not least, economic policy makers systematically chose to hear only what they wanted to hear. And it is this multilevel failure — not the inadequacy of economics alone — that accounts for the terrible performance of Western economies since 2008.............